The Utilization of Lactose by the Dairy Calf Fed Normal or Modified Milk Diets

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Abstract
- The effect of feeding whole milk or modified milk diets to dairy calves on the amt. of sugar excreted in the urine was detd. Equipment was designed for quantitative urine collection. Calves fed whole milk or skim milk for periods up to 42 days utilized the dietary lactose very effectively. No difference was observed in the galactose excretions for the 2 groups. The amt. excreted, measured as galactose, ranged from 1.1 to 3.4% of the total lactose ingested. When the lactose content of the milk was doubled, the result was an increase in urinary galactose equivalent to 8% of the lactose ingested. The galacto-suria was accompanied by diarrhea and unthriftiness of the animals.